1001 - Disclosure - N-2 - [Fee Table] link:presentationLink link:definitionLink link:calculationLink 1002 - Disclosure - N-2 - [Senior Securities] link:presentationLink link:definitionLink link:calculationLink 1003 - Disclosure - N-2 - [Investment Objectives] link:presentationLink link:definitionLink link:calculationLink 1004 - Disclosure - N-2 - [Risk Factors] link:presentationLink link:definitionLink link:calculationLink 1005 - Disclosure - N-2 - [Effects of Leverage] link:presentationLink link:definitionLink link:calculationLink 1006 - Disclosure - N-2 - [Share Price Table] link:presentationLink link:definitionLink link:calculationLink 1007 - Disclosure - N-2 - [Capital Stock] link:presentationLink link:definitionLink link:calculationLink 1008 - Disclosure - N-2 - [Other Securities] link:presentationLink link:definitionLink link:calculationLink 1009 - Disclosure - N-2 - [Outstanding Securities] link:presentationLink link:definitionLink link:calculationLink Alternative Minimum Tax and Capital Gain Tax Risk [Member] Anti Takeover Provisions Risk [Member] Decision Making Authority Risk [Member] Defensive Investing Risk [Member] Deflation Risk [Member] Event Risk [Member] Failures of Futures Commission Merchants and Clearing Organizations Risk [Member] General Risks [Member] Indexed and Inverse Securities Risk [Member] Inflation Risk [Member] Information Technology Systems Risk [Member] Investment Companies and ETFs Risk [Member] Legal, Tax and Regulatory Risks [Member] Management Risk [Member] Market Disruption and Geopolitical Risk [Member] Misconduct of Employees and of Service Providers Risk [Member] Operational and Technology Risks [Member] Portfolio Turnover Risk [Member] Potential Conflicts of Interest of the Advisor and Others [Member] Private Activity Bonds [Member] Reference Rate Replacement Risk [Member] Regulation and Government Intervention Risk [Member] Regulation as a Commodity Pool [Member] Reliance on Service Providers Risk [Member] Reliance on the Advisor Risk [Member] Risks Associated with Recent Market Events [Member] Swaps Risk [Member] Unrated Securities Risk [Member] US Government Securities Risk [Member] Valuation Risk [Member] Variable Rate Demand Obligations Risk [Member] When Issued Forward Commitment and Delayed Delivery Transactions Risk [Member] Yield and Ratings Risk [Member] Zero-Coupon Securities Risk [Member] Common Shares [Member] Preferred Shares [Member] TOBs [Member] VRDP Shares [Member]